Hand-drill.



F. P. SHEK.

HAND DRILL.

APPLICATION FILED JUNE 17, 1909.

Patented Feb. 22; 1910.

UNHED s;

earner enrich.

FRANK P. sHEK, or BROOKLYN, new storm.

HAND-DRILL.

T 0 all whom it may concern:

Be it known that I, FRANK P. SHEK, a citizen of the United States, andresiding at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Hand-Drills, of whichthe following is a specification, such as will enable those skilled inthe art to which it appertains to make and use the same.

This invention relates to hand drills of the class shown and describedin U. S. Letters Patent No. 693,166, granted to me Feb. 11 1902, and No.766,976 granted to me Aug. 9, 1904.; and the object of the invention isto simplify the construction of drills of this class and to adapt thesame for use either in connection with a support or as a breast drill;and with this and other ob jects in view the invention consists in theconstruction. combination and arrangement of parts hereinafter describedand claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawing forms a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which Figure 1 is a side View partly insection of my improved drill, Fig. 2 a partial section on the line 22 ofFig. 1, Fig. 3 a partial section on the line 33 of Fig. 1, Fig. 4 asection on the line t4: of Fig. 3, Fig. 5 a section on the line 55 ofFig. 2, Fig. 6 a section on the line 6-6 of Fig. 1, and Fig. 7 a viewsimilar to Fig. 8 but showing the parts in a different position.

In the practice of my invention, I provide a standard a having a base orfoot member a which projects therefrom and is preferably provided with afork a and mounted on the bottom portion of the stand ard ais avertically movable sleeve 6 having a base or foot member 6 whichprojects in the same direction as the base or foot member a and isprovided with a similar fork Z9 Secured to the top of the standard a isa bracket 0 comprising ahorizontal top plate 0 and depending end arms ormembers 0 and passing vertically through the bracket or support 0 at theright hand side thereof, and through the base or foot members a and b ofthe sleeve Z) is a shaft (Z the lower end portion of which is screwthreaded as shown at (P.

The aperture a in the base or foot mem- Specification of Letters Patent.

Application filed June 17, 1909.

Serial No. 502,680.

ber a through which the shaft (Z passes is larger than said shaft, butthe aperture 6 in the foot member 5 through which the shaft (Z passes isthreaded to correspond with the thread on said shaft, and by turningsaid shaft the sleeve Z) with its foot member b may be raised or loweredaccording to the direction in which the shaft is turned, and the footmembers a and b are thus made to serve as clamps by which the device naybe secured to a plate. board or other support Z) or between which a workpiece to be drilled may 1 e placed, or said work piece may be placed onor over the foot member 6 if desired. The shaft (Z is provided at thetop thereof with a nut-shaped head (Z and at the bottom thereof with anut (Z Mounted on and vertically adjustable on the standard a is asupplemental bracket or support 6 provided at one side with parallelprojecting ears or members 6 and at the opposite side with a yoke-shapedportion 6 through which the standard a passes and within the bracket 0is a friction plate 6 and screws c are passed through one side portionof said bracket and adapted to bear on said plate and to increase ordecrease the friction between the bracket and the standard a as may bedesired, and in practice I provide a rod f which is adapted to be passedloosely through the ears 0 members c and one end of which is screwthreaded as shown at f I also provide a clamp device 9 consisting of twoarms hinged together at 9 and the hinged ends of which are adapted toclamp and securely hold a nut member The construction hereinbeforedescribed with the exception of the nut member 9* relates to the supportof the drill only, and T will now proceed to describe the constructionof the drill. Passing vertically through the nut member which isinteriorly threaded as shown at g in Fig. 1 is a sleeve h which isthreaded to correspond with the thread of said nut, and the lower end ofwhich is provided with a head if, and the upper end of which is providedwith a breast piece 71. which is secured thereto by a set screw h, andpassing vertically through the sleeve 71 is a shaft 2' which ispreferably composed of two parts connected as shown at 2' and the upperend portion of which is provided with a head 2' The shaft 2' is providedat its lower end with a cylindrical head i which corresponds with thehead 72, of the sleeve h. I also provide a tool j to which is PatentedFeb. 22, 191d secured a beveled gear 7' through which the shank j of thetool j passes, and the shank y' of the tool j passes into the head 2' ofthe shaft z' and is provided with an annular groove, and passed throughthe head 2 of the shaft 6 is a set screw or similar device j* the innerend of which enters said groove, and this construction permits of thefree rotation of the tool and the gear j and prevents the longitudinalmovement of the shank 7' of the tool in the head i of the shaft 2'. Theadjacent parts of the head If of the sleeve h and the head 2' of theshaft 1' are provided with a longitudinal groove in which is mounted asliding lock 70 by means of which the parts it and 2' may be lockedtogether, this feature of the construction being particularly designedfor use when the device is used as a. hand or breast drill independentof the support consisting of the standard a and the parts connectedtherewith. I also provide a bracket support m which is mounted on thehead 2' of the shaft '5 and adapted to be secured thereto by a set screwm and said bracketsupport is oblong in form and the inner side thereofis provided with screw threaded sockets m and m adaptedto receive thethreaded end 7 of the rod f, and the other side of said bracket supportis provided with a stud m on which is mounted a beveled gear m whichmeshes with the gear j and mounted on the stud m and secured to the gear4% in any desired manner is a crank 12 having a handle m The use of thisdevice as shown in Fig. 1 will be similar to that of other devices ofthis class, or of the devices shown and described in the patentshereinbefore referred to.

By turning the shaft (Z, the foot member 5 of the sleeve 6 which formsone part of a clamp, the other part or member of said clamp consistingof the footmember a may be manipulated as desired for securing thedevice to any support or for securing a work piece between the clampmembers, and in the operation of the device, when the drill is connectedwith a support, one hand is placed on the breast piece 7L3 and the crankn is operated by the other hand.

The rod f and the clamp device 9 constitute a simple and effective meansfor connecting the drill proper with the support, and it will beapparent that with the brackets or supports 0 and e constructed asdescribed, the drill may be mounted on the side of the standard aopposite that shown in Fig. 1 by simply passing the rod f through thebracket or support 6 and the arms g of the clamp 9 through the bracketor support 0 in the direction of the arrow at" of Fig. 1 withoutchanging the position of said brackets or supports on the standard a,but inorder to do this the bracket support m must be provided with thetwo screw threaded sockets m and m, and this position of said parts isshown in Fig. 7.

The bracket or support 0 through which the arms of the clamp member 9are passed is provided with a set screw 0 with which is connected atransverse plate 0 which is adapted to bear on the arms g of said clampand by means of this construction the said clamp may be locked in anydesired position in said bracket or support, and the bracket or supporta is provided with a screw p which is adapted to bear on the rod and tolock said rod in any desired position.

W hen this device is used with the parts thereof in the position shownin Fig. 1 the drill or tool is fed forward by turning the head or handleit with one hand while the crank 11 is turned by the other, and in usingthis device as an ordinary breast drill without the support, the clamp gis detached from the bracket or support 0 and from the nut g and the rod7 is detached from the bracket or support m. The nut is then run downadjacent to the head if of the sleeve h and serves as av handle which isv grasped by one hand while the head it IS pressed against the breastand the crank 12 is turned by the other hand. In this use of the deviceafter the rod 7 has been detached from the bracket or support an ahandle may be connected with said bracket or support if desired, but thenut 9* when manipulated as above set out will serve as a convenienthandle for the drill wnen used in this manner.

From the foregoing description, it will be seen, that the nut g" andsupport m are a part of the support of the drill, and while the nut g isdescribed herein as being mount ed 011 the sleeve 7L and the support mas on the head of the shaftz', it will be understood that these partsform in connection with the clamp g and the rod supports for the drillproper. It will also be understood that the head 7L3 forms a handle forturning the drill in its supports, and by turning said handle the drillmay be adjusted vertically into any desired position as will be readilyunderstood, the direction of said adjustment de pending on the directionin which the handle 71 is turned, but when the parts are in position foruse this adjustment can only be accomplished by moving the bracket orsupport 0 vertically at the same time.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a drill device of the class described, a standard provided at thebottom thereof with a foot, a sleeve mounted on said standard andprovided with a corresponding foot, said feet forming clamp members, asupport secured to the top of said standard and provided with parallelarms, a shaft passed downwardly through said support and through saidclamp members and adapted when turned to operate one of said clampmembers, a clamp device consisting of parallel members passed throughthe arms of said support, a supplemental support vertically adjustableon said standard and provided with parallel ears or projections, a rodpassed through said ears or projections, and a drill supported by saidclamp and said rod.

2. In a drill device of the class described, a standard provided at thebottom thereof with a foot, a sleeve mounted on said stand- I and a nutdevice adapted to be held in said I clamp, and a support adapted to beconnected with said rod, said nut device and said support being adaptedto support a drill in an upright position.

3. in a drill device of the class described, a standard provided at thebottom thereof with a foot, a sleeve mounted on said standard andprovided with a corresponding foot, said feet forming clamp members, asupport secured to the top of said standard and provided with parallelarms, a shaft passed downwardly through said support and through saidclamp members and adapted when turned to operate one of said clampmembers, a clamp device consisting of parallel members passed throughthe arms of said support, a supplemental support vertically adjustableon said standard and provided with parallel ears or projections, a rodpassed through said ears or projections, and a nut device adapted to beheld in said clamp, and a support adapted to be connected with said rod,said nut device and said support being adapted to support a drill in anupright position, said rod being provided with a thread at one end, andsaid supplemental support being provided in its opposite side portionswith correspondingly threaded sockets.

i. In a drill device of the class described, a threaded sleeve providedat one end with a handle and breast piece and at the opposite end with ahead, a nut mounted on said sleeve, a shaft passing through said sleeveand rotatable therein and provided with a head which corresponds withthe head of said sleeve, a bracket support mounted on the head of saidshaft and provided with a stud, a tool the shank of which is carriedwithin the head of said shaft and adapted to rotate therein, a beveledgear connected with the shank of the tool, a beveled gear mounted on thestud connected with the bracket support and adapted to operate inconnection with the first named beveled gear, and a crank mounted onsaid stud and connected with the beveled gear thereon and adapted torotate the same.

5. In a drill device of the class described, a threaded sleeve providedat one end with a handle and breast piece and at the opposite end with ahead, a nut mounted on said sleeve, a shaft passing through said sleeveand rotatable therein and provided with a head which corresponds withthe head of said sleeve, a bracket support mounted on the head of saidshaft and provided with a stud, a tool the shank of which is carriedwithin the head of said shaft and adapted to rotate therein, a beveledgear connected with the shank of the tool, a beveled gear mounted on thestud connected with the bracket support and adapted to operate inconnection with the first named beveled gear, and a crank mounted onsaid stud and con nected with the beveled gear thereon and adapted torotate the same, a clamp device adapted to be connected with said nut,and a rod adapted to be connected with said bracket support, and meansfor connecting said clamp and rod with a support.

6. In a drill of the class described, a threaded sleeve pro-vided at oneend with a breast piece and at the opposite end with a head, a shaftpassed through said sleeve and rotatable therein and provided with ahead which corresponds with the head of said sleeve, a bracket supportmounted on the head of said shaft and provided with a stud, a tool theshank of which is carried within the head of said shaft and adapted torotate therein, a beveled gear connected with the shank of the tool, abeveled gear mounted on the stud connected with the bracket support andadapted to operate in connection with the first named beveled gear, acrank mounted on said stud and connected with the beveled gear thereonand adapted to rotate the same, and means for locking the head of thesleeve to the head of said shaft.

In testimony that I claim the foregoing as my invention I have signed myname in presence of the subscribing witnesses this 15th day of June1909.

FRANK P. SHEK.

lVitnesses H. R. CANFIELD, C. E. MULREANY.

